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Name: _______________________________________ The Cells in Living Things What are Living Things? Most living things need these four things to survive: o ________________________________ o ________________________________ o ________________________________ o ________________________________ Most living things use _______________________________ to turn food into energy. Plants, people, and other animals are all ___________________________- any living thing that can carry out its life activities on its own. There are five functions of all living things: o ____________________________________________________ o ____________________________________________________ o ____________________________________________________ o ____________________________________________________ o ____________________________________________________ Introduction to Cells Cells are the ________________________________ of living things. They are the _________________ units of living matter. _______________________________ organisms have only one cell. _______________________________ organisms have many different kinds of cells that take care of the various functions of the organism. Comparing and Contrasting Animal and Plant Cells Most plant and animal cells are different in ____________________, _________________, and _________________________. o An animal cell’s thin outer covering is called the ________________________. o Plant cells have a thick, stiff outer structure called the __________ __________ that protects and supports the plant cell. o Plant cells have food factories called _____________________ that contain chlorophyll, which give the cells a greenish color. o Both plant and animal cells are filled with a jellylike substance called _______________- which is mostly water but contains important chemicals. o Most plant cells have a ___________________ shape, while animal cells have a wide ___________________ of shapes. How Small Can Organisms Be? Organisms that are too small to see without a microscope are called ______________________________________. The one-celled microorganisms that live in pond water are called ________________. Bacteria are much _____________________ than most plant, animal, or protest cells. Some _______________________ are helpful and are used to make foods such as cheese and buttermilk. Yeast and mushrooms are examples of ____________________. How is an Organism Put Together? Groups of similar cells that work together carrying out a certain job are called ___________________. o Ex: The tissue that covers and protects your body is your _______________. A group of tissues that work together doing a certain job is a(n) ______________. A(n) _________________________________ is a group of organs that work together carrying on life functions. Is It Living? A _____________________ contains a “set of plans” for ________________ living cells. Unlike living things, a virus does not make or use _________________. They do not grow, change, or respond to its environment. It only reproduces.